As equation is not given it is assumed that H2O produced is in liquid form.
HQ11.44 Homework. Unanswered Using the first equation in HQ11.43, how much heat will be generated if...
HQ11.43 Homework Answered For the reaction of H2(g)+1/2 02(g) H20(g), AH° is -285.82 kJ. What is AHo for the reaction 2H20(g) -- > 2H2(g) + 02(g)?| HQ11.45 Homework Unanswered Using the first equation in HQ11.43, how grams of 02(g) will be needed to produce 55.0 kJ of heat if reacted in excess H2(g)? Report answer in grams without units Numeric Answer:
#9 Calcula Homework. Unanswered Consider the reaction CH2O(g) =H2(g) + CO(g). Exactly 0.044 moles of CH2O were injected into a 250 ml flask. At equilibrium, (CH2O) = 0.054 M. What is Ke for this reaction? Report your answer to the correct number of significant figures. Numeric Answer: Unanswered Submit
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s) AH = -1652 kJ (a) How much heat is released when 3.54 mol iron are reacted with excess O2? Ok] (b) How much heat is released when 1.48 mol Fe2O3 is produced? CJ) (c) How much heat is released when 2.50 g iron are reacted with excess O2? DJ (d) How much heat is released when 12.6 g Fe and 1.02 g O2 are reacted? CkJ
HQ3.01 Homework - Unanswered How many moles of oxygen atoms are in 9.2E-1 moles of CO2? Only give the numeric value of your answer. Don't include the units. Respond with the correct number of significant figures in scientific notation (Use Enotation and only 1 digit before decimale.g.2.585 for 2.5 x 10") Numeric Answer
Question 2 3 pts The heat of fusion for glycerol (C3H803) is 18.48 kJ/mol. How much heat would be absorbed when 227.57 g of glycerol undergo fusion? Express your answer in units of kilojoules (kJ) using at least three significant figures. Question 3 3 pts The Arxn for the combustion of acetone (C3HO) is -895 kJ, as shown below. How many grams of Oz would need to be consumed by this reaction in order to release 571.9 kJ of heat?...
Magnesium (Mg) combusts in air to give a brilliant white light that has been used in photographic flashes and emergency flares. How much heat is produced if 10.0 g Mg is combusted with excess oxygen gas? Mg(s) + O2(g)-MgO(s) ard," =-601.6 kJ/mol Report your answer with three significant figures. . Provide your answer below: kJ
How much heat (J) is evolved when 450 g of Fe,O3 is reacted with excess carbon monoxide using the equation below? Fe2O3(s) + 3C09) - 2 Fe(s) 3 CO2(g) AH -248 kJ/mol.
CREDIT Show all work for partial credit. 1) How much heat energy is released when 1000. g of methane gas (CH4) is completely reacted with excess O2 according to the following equation? (up to 8 pts) Hint: you will need to convert from g- mol energy CH& Cg)+202 (g) CO2 (g ) + 2 H20 (I)+890.4 kJ
show the calculation of the amount of heat involved if 35.6 g of H2S is reacted with excess of O2 to yield sulfur trioxide and water by the following reaction. Report your answer to 4 significant figures
Please display answer to correct number of significant
figures.
5.00000 out of 5.00000 points How much energy in kJ is needed to heat 4.45 g of ice from-10.0。C to 30.0 ℃? The heat of fusion of water is 6.02 kJ/mol, and the heat capacity is 2.03 J/g。C for ice and 4.18 J/g"C for liquid water G